PROCEDURE: IUG_LOAD_IRIO_NIPR iug_load_irio_nipr, site = site, $ datatype=datatype, $ trange=trange, $ verbose=verbose, $ downloadonly=downloadonly, $ no_download=no_download PURPOSE: Loads the imaging riometer data obtained by NIPR. KEYWORDS: site = Observatory name, example, iug_load_irio_nipr, site='syo', the default is 'all', i.e., load all available stations. This can be an array of strings, e.g., ['syo', 'hus'] or a single string delimited by spaces, e.g., 'syo hus'. Available sites as of April, 2013 : syo datatype = observation frequency in MHz for imaging riometer At present, '30' or '38' is only available for datatype. trange = (Optional) Time range of interest (2 element array). /verbose: set to output some useful info /downloadonly: if set, then only download the data, do not load it into variables. /no_download: use only files which are online locally. EXAMPLE: iug_load_irio_nipr, site='syo', $ trange=['2003-11-20/00:00:00','2003-11-21/00:00:00'] Written by Y.-M. Tanaka, December, 2012 (ytanaka at nipr.ac.jp)